With the Obsidian mobile app, those workarounds are no longer necessary.
The Obsidian mobile app is already available for Insiders, Supporters, and VIPs.
I have upgraded to Supporter just to get early access to the mobile app, but Insiders can get it as well.
I think the app will be released soon for everyone. The development team is great, and it’s working really fast (I’m glad I upgraded to a Supporter role).
Before that, I was using iA Writer on my iPad. iA Writer and Obsidian share the same vault in iCloud.
With the mobile app, you need to set a unique vault to Obsidian in iCloud.
Although iA Writer is a fantastic app, I no longer need it.